Loading stack preset and input presets seems slow?

Last time I posted this I had no replies so hope this time I get some! Issue is that when I want to load up a preset say in the effects stack I scroll through the presets to find one. I have autoload enabled.When I have the preset I want highlighted I find I have to leave it there for several second before the KPA brings it into view. If I exit before this the original preset is still there. Same happens with changing input preset for different guitars. I can't find any way to hit a button to load the preset and then exit quickly with the new preset loaded properly.

Don Think I got this sorted now! Am using latest sw version. On the input presets think I did not unlock first. On the effects preset, I have a number of say hall reverbs that have different names but they are all still Hall type class. When I changed the preset on first glance it looked as though there was no change mainly because I tend to change the fx type very gradually.